Jellyfish caught snoozing give clues to origin of sleep
New research suggests that Cassiopea jellyfish eschew the night life, tucking into bed and going to sleep when the sun goes down. Find source
CRISPR used to peer into human embryos' first days
Gene-edited embryos enable researchers to unpick role of a crucial gene, with more studies likely to follow. Find source
Human semen can host up to 27 different viruses
A new meta-analysis has found that 26 other viruses can live in human semen and go on to infect the bloodstream. Those include the viruses that cause Ebola, HIV, hepatitis B, and herpes. Find source
Smartphone apps can reduce depression
New research has confirmed that smartphone apps are an effective treatment option for depression, paving the way for safe and accessible interventions for the millions of people around the world diagnosed with this condition. Find source
Breathing dirty air may harm kidneys
Outdoor air pollution may increase the risk of chronic kidney disease and contribute to kidney failure, say researchers. Find source